• 서비스연구
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• 제5권2호
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• pp.103-110
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• 2015

최근, 3D FPS 게임에서 캐릭터의 분류는 매우 중요한 문제로 떠오르고 있다. 본 연구에서는 간단한 조작으로 의미객체의 화상 영역 분할을 이용한 게임 콘텐츠 분류 방법을 제안한다. 이 방법에서는, 우선 비선형 RGB 컬러 모델과 컬러양자화 방식을 사용했다. 입력 화상은 20개 미만 양자화 된 색을 표현하고 의미 있는 적은 수의 컬러 히스토그램을 사용한다. 그리고, 적은 블록으로 분할 된 이미지는 블록 단위 컬러 히스토그램 교차로 인접 블록과의 유사도를 계산한다. 왜냐하면, 질감 및 대상 블록의 경계에 있어서, 추출 블록 경계를 제외한 나머지를 사용하기 때문이다. 게임 오브젝트는 이들 방법에 에 의해 블록 경계 영역을 설정하고 FPS 게임 플레이에 사용될 수 있다. 실험을 통해, 우리는 각각의 기능을 사용하여 분류 방법에 대해 80% 이상의 정확도를 얻을 수 있었다. 따라서, 이 특성을 이용하여 게임콘텐츠를 효율적으로 분류 할 수 있고, 이는 게임 속도와 전략적 행동에 보다 나은 결과를 초래할 것으로 예상한다.

• 한국의상디자인학회지
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• 제23권1호
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• pp.47-59
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• 2021

This study aims to provide inspiration and methods for menswear design by analyzing elements for men's fashion using flower images. The results are as follows: Men's fashion types with flower images were categorized as classic tailored, casual tailored, casual wear, sports-outdoor. The order of frquency was casual tailored, casual, classic tailored, and sports outdoor. For the classic tailored type, the flower images are related with an X-line silhouette, and the arrangement methods, such as a scattered patterns, one-point patterns, and surface techniques, such as printing and embroidery were used, and similar color or monochromatic schemes appeared sequentially. For the casual tailored type, the flower images are related to an H-line silhouette, arrangement methods such as a scattered pattern, panel pattern, and surface techniques, such as print, embroidery, and jacquard were used, similar color and accent color schemes appeared sequentially. For the casual type, the flower images are related to H-line and Y-line silhouettes, and arrangement methods, such as a scattered pattern, all-round continuous pattern, and panel pattern, and surface techniques, such as print, jacquard, embroidery, and patchwork were used, similar color and contrast color schemes appeared sequentially. For the sports outdoor type, the flower image were related to A-line and H-line silhouettes, arrangement methods, such as a scattered pattern and all-round continuous pattern, and surface techniques, such as print and jacquard were used, monochromatic scheme and contrast color schemes appeared sequentially. Therefore, the flower images in men's fashion were applied to various design elements, and displayed an interesting result, different from conventional design approach.

• 인간식물환경학회지
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• 제22권2호
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• pp.127-143
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• 2019

This study investigates the color stimuli of two varieties of foliage plants by extracting electroencephalogram, electrocardiogram and physiology activity data from 30 participants in their 50s or older. Changes in the physiological activity of subjects against six color stimuli were examined. The stimulus to real green plants 'Silver Queen' was set as the control group, and was compared with other groups including the stimulus to real 'Angel' plants and four stimuli to artificial colors (two color images and color schemes of the same green and red plants). Compared to the five groups, the relative theta power spectrum (RT) and the ratio of alpha to high beta (RAHB) increased in the subjects exposed to real green plants. This result demonstrates that the green plant ('Silver Queen') increases the stability, relaxation, and internal concentration of subjects in a proper state of awakening. The result of this experiment showed a statistically significant difference in the level of RT when subjects were exposed to the groups of real green and red plants. This finding indicates that the green plant increases internal concentration more than the red plant. RT and the relative low beta power spectrum (RLB) in the groups of natural colors were higher than the groups of artificial colors when subjects focused their mind on the two types of real plants. However, the level of relative mid beta power spectrum (RMB), ratio of SMR to theta (RST), ratio of mid beta to theta (RMT), relative high beta power spectrum (RHB), and spectral edge frequency 95% were higher when subjects were exposed to the photos and colors scheme of plants than when they were exposed to real plants. The subjects experienced more "comfortable" emotions when they were looking at plants with green colors. Overall, it is recommended to use the natural colors of real plants in places where which stability and relaxation are required. On the contrary, the artificial colors of plants such as their photos and color schemes are useful in places where a high level of concentration is required in a short period of time.

• 한국건축시공학회지
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• 제23권6호
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• pp.863-873
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• 2023

본 연구에서는 작업자의 안전을 확보하기 위하여, 건설 현장의 안전조끼 색채에 대한 문제점을 고찰하였다. 먼셀표색계와 색채분석 프로그램을 이용하여 건설 작업종류에 따른 작업용 안전조끼의 프로토타입을 제시하였다. 현장 작업환경의 전체적인 색채와 대비되는 안전조끼를 착용하면, 작업자들을 직관적으로 구별이 가능하고 시인성이 높아져서 안전사고의 발생을 감소시킬 수 있는 것으로 나타났다. 철근배근 작업, 유로폼 거푸집 작업, 갱폼 거푸집 작업, 철골 세우기 작업자의 안전조끼의 색(색상, 명도, 채도)은 철근배근 작업자용 조끼는 10GY, 8, 8 유로폼 8.75B, 7, 8 갱폼 3.75B, 2, 4 철골 세우기 6.25BG, 5, 10이 적절한 것으로 나타났다. 각 공종별 작업자에 대한 안전조끼의 프로토타입에 대한 전문가의 의견은 철근공사와 철골공사 작업 관련 안전조끼 색에 대해서는 90% 이상의 매우 긍정적인 것으로 나타나 제시된 안이 적절한 것으로 판단된다.

• 한국정보통신학회논문지
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• 제18권3호
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• pp.687-696
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• 2014

본 논문은 사용자의 입력, 색상 및 깊이 정보를 이용한 의미론적 물체 분할 방법을 제안한다. 의미있는 영역을 깊이영상에서 유사한 깊이 정보와 사용자 스트로크 입력의 중심에 위치한다고 가정한다. 제안된 방법은 스트로크 입력을 이용하여 관심 영역을 설정하고, 색상과 깊이 정보를 이용하여 의미있는 영역을 검출한다. 구체적으로 제안방법은 관심영역에 대해 색상과 깊이 정보를 이용한 과분할 과정과 과분할 영역에 대해 깊이 정보를 이용한 의미론적 물체 추출과정으로 구성되어 있다. 과분할 과정에서 적응적 임계값 적용 및 형태학적 기울기에 대한 적응적인 가중치 적용을 통한 마커 추출 방법을 제안하였다. 의미론적 물체 추출과정에서는 관심영역의 가장자리 영역에서 내부 영역으로의 순서대로 전체 깊이의 평균과 차이를 이용하여 추출하고자 하는 물체 영역인지 아닌지를 결정하도록 하였다. 실험 결과에서 제안한 방법이 효과적으로 의미있는 물체 추출 결과를 얻을 수 있음을 보인다.

• 천문학논총
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• 제27권4호
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• pp.293-294
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• 2012

We established a separation scheme to distinguish galaxies from stars with the aid of AKARI/FIS color-color (CC) diagrams. In all the combinations of CC diagrams we can distinguish two separate clouds. It was shown that in all cases one of them contains more than 95% of galaxies and the other one, in most cases, consists in more than 80% of stars (Pollo et al., 2010). Currently we are looking into more detailed classifications. We are especially interested in separating different morphological types of galaxies, mainly within spiral galaxies. Moreover, we study the properties of infrared galaxies.

• 전자공학회논문지B
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• 제30B권12호
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• pp.73-86
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• 1993

This paper proposes an automatic variable block truncation coding (BTC) method. It selects the block size automatically based on the mode of the discontinutiy measure of blocks. The combination of an automatic block-size determination scheme and the conventional BTC results in the proposed automatic variable BTC techniques. For color images, subsampling in I and Q chrominance components is adopted along with the variable BTC. To show the effectiveness of the proposed algorithm, its simulation results are compared to those of the several conventional BTC algorithms for monochrome and color test images. Computer simulation shows that the proposed algorithm gives better performance than the conventional ones based on the subjective and objective performance evaluation.

• 한국정보전자통신기술학회논문지
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• 제6권3호
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• pp.183-188
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• 2013

멀티미디어 데이터의 저작권 주장을 위한 방법으로 사용되고 디지털 워터마킹 중에서 영상에 대한 워터마킹 기법이 많이 연구되어지고 있지만, 칼라영상에서의 워터마킹 연구가 미비하다. 본 논문에서는 효율적 영상 워터마킹을 위해서 칼라모델 중에서 HSI 채널에서의 워터마킹 적용을 분석하였다. 실험 결과, 가중치에 따른 비가시성을 확인할 수 있었고, 추출된 워터마크의 상관도에서 만족할 만한 결과를 확인할 수 있었다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1623_1624
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• 2009

The use of arc tubes made of ceramic material further enhanced some of the metal halide lamp’s properties. These properties translate into higher efficacy with better color rendering, stable color through lamp long life. Recently, due to an increase in the application of the ceramic metal-halide lamp, the study for the property etc. according to Ballast's driving scheme and the study for arc tube material, optimization of gas and so on are being proceeded to improve the property of the lamp. Especially, to control ceramic metal-halide lamp, the vigorous study and practical use with respect to Electronic Ballast, which has been improved in the disadvantages of the conventional Magnetic Ballast are made. In this paper, Electrical characteristics and gas insulation destroy time are analyzed by comparing magnetic ballast with electronic ballast.

• ETRI Journal
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• 제25권5호
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• pp.288-296
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• 2003

In this study, we present a 260k color TFT LCD driver chip set that consumes only 5 mW in the module, which has exceptionally low power consumption. To reduce power consumption, we used many power-lowering schemes in the logic and analog design. A driver IC for LCDs has a built-in graphic SRAM. Besides write and read operations, the graphic SRAM has a scan operation that is similar to the read operation of one row-line, which is displayed on one line in an LCD panel. Currently, the embedded graphic memory is implemented by an 8-transistor leaf cell and a 6-transistor leaf cell. We propose an efficient scan method for a 6-transistor embedded graphic memory that is greatly improved over previous methods. The proposed method is implemented in a 0.22 ${\mu}m$ process. We demonstrate the efficacy of the proposed method by measuring and comparing the current consumption of chips with and without our proposed scheme.